[INFO] cloning repository https://github.com/atobaum/miniwc-rust-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atobaum/miniwc-rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatobaum%2Fminiwc-rust-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatobaum%2Fminiwc-rust-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b657f252322340d3d92a704af66b14c973efdfc
[INFO] testing atobaum/miniwc-rust-tutorial against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatobaum%2Fminiwc-rust-tutorial" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/atobaum/miniwc-rust-tutorial on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/atobaum/miniwc-rust-tutorial
[INFO] finished tweaking git repo https://github.com/atobaum/miniwc-rust-tutorial
[INFO] tweaked toml for git repo https://github.com/atobaum/miniwc-rust-tutorial written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/atobaum/miniwc-rust-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8a91e16250bd234b3af2b63a815ec1700f435dd83c706c890a9ae48d6fd464b
[INFO] running `Command { std: "docker" "start" "-a" "c8a91e16250bd234b3af2b63a815ec1700f435dd83c706c890a9ae48d6fd464b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a91e16250bd234b3af2b63a815ec1700f435dd83c706c890a9ae48d6fd464b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a91e16250bd234b3af2b63a815ec1700f435dd83c706c890a9ae48d6fd464b", kill_on_drop: false }`
[INFO] [stdout] c8a91e16250bd234b3af2b63a815ec1700f435dd83c706c890a9ae48d6fd464b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44c0b02a72384945a1c81f24985882af43979b344010f1bc823b2a00b4d86fc0
[INFO] running `Command { std: "docker" "start" "-a" "44c0b02a72384945a1c81f24985882af43979b344010f1bc823b2a00b4d86fc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniwc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]   --> src/main.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum Coin{
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "44c0b02a72384945a1c81f24985882af43979b344010f1bc823b2a00b4d86fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c0b02a72384945a1c81f24985882af43979b344010f1bc823b2a00b4d86fc0", kill_on_drop: false }`
[INFO] [stdout] 44c0b02a72384945a1c81f24985882af43979b344010f1bc823b2a00b4d86fc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 103bb1db81f7229fd19c94e8f828be9a39c12cc3ee51c39e91443de352acfaa1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "103bb1db81f7229fd19c94e8f828be9a39c12cc3ee51c39e91443de352acfaa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniwc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]   --> src/main.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum Coin{
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "103bb1db81f7229fd19c94e8f828be9a39c12cc3ee51c39e91443de352acfaa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103bb1db81f7229fd19c94e8f828be9a39c12cc3ee51c39e91443de352acfaa1", kill_on_drop: false }`
[INFO] [stdout] 103bb1db81f7229fd19c94e8f828be9a39c12cc3ee51c39e91443de352acfaa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee8c71ce187a6b6ba1055fefdc25741bbfb2a3e0ea4bf0d10bade33b282a25bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee8c71ce187a6b6ba1055fefdc25741bbfb2a3e0ea4bf0d10bade33b282a25bc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: enum is never used: `Coin`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:22:6
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 22 | enum Coin{
[INFO] [stdout] 
[INFO] [stderr]    |      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/miniwc-f0124b972c3cfbf4
[INFO] running `Command { std: "docker" "inspect" "ee8c71ce187a6b6ba1055fefdc25741bbfb2a3e0ea4bf0d10bade33b282a25bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8c71ce187a6b6ba1055fefdc25741bbfb2a3e0ea4bf0d10bade33b282a25bc", kill_on_drop: false }`
[INFO] [stdout] ee8c71ce187a6b6ba1055fefdc25741bbfb2a3e0ea4bf0d10bade33b282a25bc